Prepare 0.45.0 release (#2549)

* Create release notes

* Bump versions to 0.45.0

* Add manual note about Qiskit 2.3

* Fix missing fragment

* Apply suggestions from code review

Co-authored-by: abbycross <across@us.ibm.com>

---------

Co-authored-by: abbycross <across@us.ibm.com>

Author: diego-plan9

docs/conf.py

@@ -27,7 +27,7 @@
 # The short X.Y version
 version = ""
 # The full version, including alpha/beta/rc tags
-release = '0.44.0'
+release = '0.45.0'
 
 # -- General configuration ---------------------------------------------------
 

pyproject.toml

@@ -50,7 +50,7 @@ zip-safe = false
 root = "."
 write_to = "qiskit_ibm_runtime/VERSION.txt"
 version_scheme = "release-branch-semver"
-fallback_version = "0.44.0"
+fallback_version = "0.45.0"
 
 [tool.mypy]
 python_version = "3.10"

release-notes/0.45.0.rst

@@ -0,0 +1,22 @@
+0.45.0 (2026-01-08)
+===================
+
+New Features
+------------
+
+- ``qiskit-ibm-runtime`` is now compatible with Qiskit v2.3.
+- The ``delete_job()`` method has been reintroduced. (`2541 <https://github.com/Qiskit/qiskit-ibm-runtime/pull/2541>`__)
+
+
+Bug Fixes
+---------
+
+- Bugfix for :meth:`.QiskitRuntimeService.backend` when the flag ``use_fractional_gates=True``
+  checks for either or both ``Rx`` and ``Rzz`` gates as opposed to only ``Rzz`` gates in the backend basis. (`2520 <https://github.com/Qiskit/qiskit-ibm-runtime/pull/2520>`__)
+
+
+Other Notes
+-----------
+
+- The minimal version of Qiskit required is now ``2.0.0``, as the ``1.x`` Qiskit
+  series is no longer supported. (`2543 <https://github.com/Qiskit/qiskit-ibm-runtime/pull/2543>`__)